Enable Rubocop
DRY StaticPagesController
Clean bin/rake
Update dependencies
Clean bin/spring
Clean bin/rails
Clean config/initializers/assets
Clean config/initializers/backtrace_silencers
Clean config/initializers/cookies_serializer
Clean config/initializers/wrap_parameters
Clean config/routes
Clean config/environments/test
Clean config/environments/development
Clean config/environments/production
Clean config/application
Clean test/test_helper
Clean test/controllers/static_pages_controller_test
Clean Rakefile
Comment app/helpers/static_pages_helper
Comment app/helpers/application_helper